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Call Now Custom LeisureScapes: London & Stratford Ontario’s pool, hot tub, and swim spa experts.
Updated August 2026
In London, Ontario, a hot tub or swim spa with a fitted and secured lid is currently not treated as a pool under London’s pool-enclosure rules, but electrical, deck, structural, zoning, or heritage approvals may still apply depending on the project.
In Stratford, Ontario, the answer is different. Stratford has its own pool, hot tub, fence, building, zoning, and heritage requirements, so homeowners should not assume London’s rules apply to a Stratford property.
Concise answer:
You may not need a municipal pool-enclosure permit for every hot tub, but you may still need an electrical permit, deck permit, structural review, zoning confirmation, heritage approval, or fencing/locking-cover compliance. The safest answer is always property-specific confirmation before installation.
Hot tub permits can be confusing because people often ask one question when there are actually several approvals involved. The hot tub itself is only one part of the project. The electrical connection, base pad, deck, privacy screen, fence, cover, access route, heritage status, and exact municipality can all affect what is required.
This guide explains the main planning questions for homeowners considering a hot tub in London or Stratford, Ontario. It is meant to help you plan smarter, not replace municipal approval, ESA inspection, or advice for your exact property.
In London, the key detail is the fitted and secured lid. The City of London currently says that where a hot tub or swim spa has a fitted and secured lid while the unit is not in use, it is not considered a pool for London’s pool-enclosure rules.
That does not mean every backyard hot tub project is automatically free of permits. A hot tub often involves electrical work, a concrete pad, a deck, a privacy structure, steps, a gazebo, landscaping, or changes to the surrounding space. Some of those items can trigger separate approval requirements.
| London Hot Tub Item | Planning Answer | What to Confirm |
|---|---|---|
| Hot tub with fitted secured lid | Not treated as a pool under London’s pool-enclosure rules | Confirm lid fit, lock/security, and whether any other work triggers approvals |
| Electrical connection | ESA notification/permit and inspection normally apply to electrical work | Use a Licensed Electrical Contractor and confirm panel capacity |
| Deck or raised platform | A deck may need a building permit depending on height, attachment, and structure | Confirm height, load capacity, attachment to house, setbacks, and guards |
| Heritage property | Heritage approval may be required for designated properties or Heritage Conservation Districts | Confirm before installing pads, decks, privacy screens, exterior alterations, or visible changes |
Custom LeisureScapes installer advice:
“Do not just ask whether the tub needs a permit. Ask whether the electrical, deck, base, access, fence, privacy screen, or heritage status changes the answer.”
Stratford should be treated separately from London. Stratford’s building information lists a permit requirement for installing a private residential pool or hot tub that is able to contain a depth of more than 0.9 metres. Stratford’s zoning by-law also has specific rules for outdoor swimming pools and hot tubs, including where they can be located and how close they can be to lot lines.
Stratford’s zoning rules generally place outdoor pools and hot tubs, along with related walls, decks, or exterior walkways, in the interior side yard or rear yard on residential lots. They also generally require those features to be at least 1.0 metre from lot lines and not closer to a street than the required setback.
| Stratford Hot Tub Item | Planning Answer | What to Confirm |
|---|---|---|
| Hot tub depth | A private residential hot tub able to contain more than 0.9 m of water may require a building permit | Confirm tub specifications before installation |
| Location on lot | Residential hot tubs are generally directed to interior side yard or rear yard locations | Confirm setbacks, street relationship, corner lot conditions, and visibility triangles |
| Lot line setback | Hot tub, related walls, deck, or exterior walkway generally must be at least 1.0 m from lot lines | Measure from legal lot lines, not guessed fence lines |
| Equipment | Pumps, heaters, filters, and treatment equipment must generally be at least 1.0 m from lot lines | Plan the equipment location before choosing the final tub placement |
Stratford and London should not be treated as interchangeable. A hot tub that is simple to approve in one municipality may need different documentation or confirmation in the other.
Yes, electrical work is one of the most important parts of a hot tub installation. In Ontario, electrical work must be reported to the Electrical Safety Authority by filing a notification of work before the work starts. If you hire a Licensed Electrical Contractor, they should file that notification with ESA for you.
ESA also states that Licensed Electrical Contractors are the only businesses in Ontario legally authorized to do electrical work in your home. This matters because hot tubs combine water, people, pumps, heaters, controls, and electricity. It is not an area for guesswork or unlicensed shortcuts.
| Electrical Planning Item | Why It Matters |
|---|---|
| ESA notification/permit | Electrical work must be reported before the work starts |
| Licensed Electrical Contractor | The business legally authorized to do electrical work in Ontario homes |
| Panel capacity | Some spas may need dedicated circuits or panel review before installation |
| Inspection and safety | Proper inspection helps confirm the installation meets Ontario Electrical Safety Code requirements |
Electrical takeaway:
Your hot tub retailer can help you choose the spa, but the electrical connection should be handled by a properly licensed electrical contractor with ESA notification and inspection.
A hot tub filled with water is extremely heavy. Even if the hot tub itself does not trigger a specific pool-enclosure permit, the structure supporting it may need review. This is especially important if you are placing the spa on a deck, raised platform, balcony, older patio, or any structure that was not originally designed for that load.
In London, decks greater than 0.61 metres high are listed among projects requiring a permit. In Stratford, decks more than 60 centimetres above ground or attached to another building are listed among projects requiring a building permit. Even lower decks or pads still need to comply with zoning and be strong enough for the intended use.
| Support Option | Permit Question | Practical Advice |
|---|---|---|
| Concrete pad | May not always need a building permit by itself, but grading, zoning, or heritage may matter | Confirm drainage, access, level surface, and final spa location |
| Ground-level deck | May depend on attachment, height, location, and municipal rules | Do not assume it can support a filled spa without structural confirmation |
| Raised deck | More likely to need a building permit and structural review | Engineer or qualified designer input may be needed |
| Privacy structure or gazebo | Permit requirements depend on size, attachment, plumbing, location, and municipality | Confirm before building around the spa |
The permit question is not only “Can I buy this hot tub?” It is also “Can my property safely and legally support this hot tub where I want to put it?”
Sometimes, but it depends on the municipality and the wording of the local by-law. In London, a fitted and secured lid is the key reason a hot tub or swim spa is not treated as a pool under London’s pool-enclosure rules.
Stratford’s Fence and Hedge By-law says hot tubs, whirlpools, or spas must be fitted with a tight-fitted cover with a locking device or be protected with a minimum 1.52 metre high fence. That means the locking cover matters, but the exact installation still needs to be reviewed in the context of Stratford’s pool, fence, zoning, and building requirements.
| Cover or Fence Item | Why It Matters |
|---|---|
| Fitted cover | Must fit the hot tub properly and fully secure the water when not in use |
| Locking device | Helps prevent unsupervised access and may be required by local rules |
| Fence or enclosure | May be required depending on municipality, cover, pool/hot tub type, and site conditions |
| Climbable objects | Furniture, retaining walls, planters, sheds, and other objects near fencing can create compliance issues |
Safety planning tip:
Treat the cover as a safety feature, not just an energy-efficiency accessory. It needs to be properly fitted, secured, and used every time the hot tub is not in use.
Heritage properties can change the answer. In London, heritage alteration approval may be required for changes to an individually designated property or a property located within a Heritage Conservation District. In Stratford, a heritage permit is required for new construction or alteration work within the Heritage Conservation District or to a designated property.
This may matter if your hot tub project includes a new deck, exterior walkway, privacy structure, screening, hardscaping, exterior electrical work, changes visible from the street, or alterations to a designated property. Heritage review is not something to leave until the end.
Heritage Property Checklist:
The hot tub model you choose can affect installation planning. Size, water capacity, electrical requirements, cover style, access route, service clearance, base preparation, and final placement all matter. That is why it helps to compare real models early, instead of choosing a location based only on photos.
| Hot Tub Line | Permit Planning Consideration | Best Next Step |
|---|---|---|
| Bullfrog Spas | Model size, electrical requirements, service access, and cover fit should be confirmed before final placement | Compare models based on massage goals, space, and site access |
| MAAX Spas | Larger therapeutic models may need careful deck, pad, electrical, and clearance planning | Review placement before building a deck or privacy enclosure |
| OWOW Hot Tubs | Canadian-climate models still need proper support, service clearance, electrical planning, and cover security | Confirm the model, base, access path, and electrical plan together |
Installer-style planning note:
“Pick the spa and the location together. A few inches can matter when you are planning access, service panels, electrical disconnects, steps, cover lifters, privacy screens, and future maintenance.”
The right answer depends on your exact address, not just your city. Your lot size, zoning, property lines, deck height, heritage status, access route, electrical panel, drainage, privacy structure, and hot tub model can all change the installation plan.
Before ordering a hot tub, homeowners should confirm three things: where the spa can legally sit, how it will be safely powered, and what structure will support it. This is especially important if the hot tub is going on a deck, near a property line, inside a heritage area, or beside a pool, fence, retaining wall, shed, or neighbouring property feature.
Property-Specific Hot Tub Planning Checklist:
The safest process:
Choose the hot tub, confirm the location, review municipal requirements, arrange licensed electrical work, then schedule delivery and installation.
Once you know where the hot tub can go and what installation work is needed, the next step is choosing the right spa and budget. Some homeowners only think about the purchase price, but a good plan should also include delivery, electrical work, base preparation, steps, cover lifter, water care, and any deck or site preparation.
Custom LeisureScapes offers access to flexible financing options, subject to approval, so homeowners can compare the full hot tub project instead of focusing only on the upfront spa price.
1. Do you need a permit for a hot tub in Ontario?
It depends on the municipality and the project details. You may need electrical approval, municipal building approval, fencing or cover compliance, deck approval, heritage approval, or zoning confirmation.
2. Do you need a hot tub permit in London Ontario?
London currently says a hot tub or swim spa with a fitted and secured lid is not considered a pool for pool-enclosure rules. However, electrical work, decks, structures, heritage status, or other site work may still require confirmation or permits.
3. Do you need a hot tub permit in Stratford Ontario?
Stratford lists permit requirements for private residential pools or hot tubs able to contain more than 0.9 metres of water and has separate fence, zoning, equipment, and heritage rules. Stratford homeowners should confirm before installation.
4. Does a locking hot tub cover mean I do not need a fence?
In some cases, a fitted locking cover may satisfy the hot tub access-control requirement, but this depends on the municipality and site conditions. London and Stratford word their rules differently, so confirm locally.
5. Can I put a hot tub on an existing deck?
Maybe, but never assume. A filled hot tub is very heavy, and an existing deck may not have been designed for that load. Confirm structural capacity, permit requirements, deck height, setbacks, guards, access, and electrical planning before installation.
Plan Your Hot Tub the Right Way
If you are wondering whether you need a permit for a hot tub in London or Stratford, the best next step is to review the spa, the property, and the installation plan together. Custom LeisureScapes can help you compare OWOW Hot Tubs, MAAX Spas, and Bullfrog Spas while helping you think through placement, access, cover clearance, electrical planning, and backyard layout.
This guide is for planning only. Final requirements should always be confirmed with the municipality, ESA, and the appropriate licensed professionals for your exact property.
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